Storage devices

Storage devices

1. Optical

   • A laser light creates marks in a pattern on the disk
   • A laser light detects where the marks are and translates this into a readable format

2. Magnetic

   • Read/write move across the medium and change how magnetised that part of the medium is
     • E.g. one level of magnetism will be a 1, a second will be a 0

3. Solid State

   • This is made of microchips (switches)
   • The state of the switches determine if a 1, or 0 is stored